Calcination of phosphate in impinging streams. Part II. Phosphates with high organic matter and with pulverized coal

Abraham Tamir, Abraham Ziv, Ehud Zeigerson, Boa2 Parpar, Ere2 Tovim, Sason Sadka, Lev Zevin, Yehudit Friedman

Research output: Contribution to journalArticlepeer-review

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Abstract

Calcination of a high organic matter phosphate and a phosphate containing pulverized coal up to 10 wt % was performed successfully in an impinging stream calciner. The results re‐established previous conclusions that the present calciner is a useful device. A simplified model has been developed for exploring the effect of various operating parameters on the concentration of phosphate particles at the impingement plane of the streams. It also assisted us in explaining the effect of the phosphate flow rate on the efficiency of calcination. It was established that the calcination rate of phosphate is governed by the internal resistance of the particle to the heat transfer, which was consistent with previous results.

Original languageEnglish
Pages (from-to)784-789
Number of pages6
JournalCanadian Journal of Chemical Engineering
Volume71
Issue number5
DOIs
StatePublished - 1 Jan 1993

Keywords

  • calcination of phosphate
  • enrichment of phosphate
  • impinging streams

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